Table 1 Demographics and other key patient characteristics
Characteristic | nVNS (n = 120) | Sham (n = 123) | Total (N = 243) |
|---|---|---|---|
Age, mean (SD), y | 38.8 (11.0) | 39.6 (11.8) | 39.2 (11.4) |
Female sex, No. (%) | 95 (79.2) | 91 (74.0) | 186 (76.5) |
Diagnosis, No. (%) | |||
 Migraine with aura | 8 (6.7) | 9 (7.3) | 17 (7.0) |
 Migraine without aura | 112 (93.3) | 114 (92.7) | 226 (93.0) |
Current preventive medication use, No. (%) | 42 (35.0) | 35 (28.5) | 77 (31.7) |
No. of acute medication days per mo,a mean (SD) | 5.6 (1.7) | 5.3 (1.7) | 5.5 (1.7) |
Attack severity at onset for all treated attacks in DB period, No. (%) | n = 359 b | n = 329 b | NA |
 Mild | 113 (31.5) | 105 (31.9) | |
 Moderate | 156 (43.5) | 166 (50.5) | |
 Severe | 90 (25.1) | 58 (17.6) | |
Attack severity at onset for first treated attack in DB period, No. (%) | n = 119 b | n = 119 b | NA |
 Mild | 40 (33.6) | 46 (38.7) | |
 Moderate | 51 (42.9) | 55 (46.2) | |
 Severe | 28 (23.5) | 18 (15.1) |  |